N- (merukaputoarukiru) - as the -hidorokishi alkylamide and the use the reducing agent in the lasting deformation modulo of the hair

摘要

An N-(mercaptoalkyl) omega -hydroxyalkylamide having the formula, IMAGE wherein n is 2 or 3 and m is 2 to 5 inclusive is employed as a reducing agent in the first stage reducing operation of permanently deforming hair.